<!--用户登录,列表-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>hogwarts</title>
    <style>
        .header {
          background-color: #f1f1f1;
          padding: 20px;
          text-align: center;
        }
        h1 {text-align:center;}
        body {background-color:#b0c4de;}
        div {
            width: 800px;
            padding: 15px;
            margin: 25px auto;
        }

        .topnav a {
          float: left;
          display: block;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
        }

        .topnav a:hover {
          background-color: #ddd;
          color: black;
        }
    </style>
</head>
<body>
    <div class="header">
        <h1>登录页面</h1>
    </div>
    <div class="topnav">
      <a href="#">首页</a>
      <a href="#">返回</a>
    </div>
    <div>
        <label for="username">用户名</label>
        <input type="text" name="username" id="username"> <br/>
        <label for="password">密码</label>
        <input type="password" name="password" id="password"> <br/>
        <input type="submit" value="登录">
    </div>
</body>
</html>